Phosphorus Sulfide (P4S3) P4S3(l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 250 298.15 184.096 207.097 207.097 0. -220.784 -204.869 35.892 300 184.096 208.236 207.101 0.341 -220.746 -204.770 35.654 400 184.096 261.197 214.322 18.750 -229.136 -198.668 25.943 440.000 184.096 278.743 219.393 26.114 CRYSTAL <--> LIQUID 500 184.096 302.277 227.957 37.160 233.041 190.638 19.916 600 184.096 335.842 243.226 55.569 -235.916 -181.869 15.833 700 184.096 364.220 258.536 73.979 -238.077 -172.684 12.886 800 184.096 388.803 273.317 92.389 -239.831 -163.219 10.657 900 184.096 410.486 287.377 110.798 -400.722 -150.307 8.724 1000 184.096 429.882 300.675 129.208 -398.411 -122.607 6.404 1100 184.096 447.429 313.231 147.617 -396.146 -95.137 4.518 1200 184.096 463.447 325.091 166.027 -648.216 -63.557 2.767 1300 184.096 478.183 336.308 184.437 -642.946 -15.050 0.605 1400 184.096 491.826 346.936 202.846 -637.741 33.054 -1.233 1500 184.096 504.527 357.023 221.256 -632.598 80.788 -2.813 1600 184.096 516.408 366.617 239.665 -627.515 128.181 -4.185 1700 184.096 527.569 375.760 258.075 -622.487 175.258 -5.385 1800 184.096 538.092 384.489 276.485 -617.512 222.041 -6.443 1900 184.096 548.045 392.838 294.894 -612.586 268.548 -7.383 2000 184.096 557.488 400.836 313.304 -607.706 314.797 -8.222 2100 184.096 566.470 408.511 331.713 -602.867 360.803 -8.974 2200 184.096 575.034 415.887 350.123 -598.067 406.579 -9.653 2300 184.096 583.218 422.986 368.533 -593.303 452.138 -10.268 2400 184.096 591.053 429.827 386.942 -588.572 497.491 -10.828 2500 184.096 598.568 436.427 405.352 -583.872 542.647 -11.338 2600 184.096 605.788 442.803 423.761 -579.201 587.615 -11.805 2700 184.096 612.736 448.969 442.171 -574.554 632.404 -12.235 2800 184.096 619.431 454.938 460.581 -569.931 677.022 -12.630 2900 184.096 625.891 460.722 478.990 -565.330 721.474 -12.995 3000 184.096 632.133 466.333 497.400 -560.752 765.769 -13.333